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Note on off-shell relations in nonlinear sigma model

Chen, Gang; Du, Yijian LU ; Li, Shuyi and Liu, Hanqing (2015) In Journal of High Energy Physics
Abstract
In this note, we investigate relations between tree-level off-shell currents in nonlinear sigma model. Under Cayley parametrization, all odd-point currents vanish. We propose and prove a generalized U(1) identity for even-point currents. The off-shell U(1) identity given in [1] is a special case of the generalized identity studied in this note. The on-shell limit of this identity is equivalent with the on-shell KK relation. Thus this relation provides the full off-shell correspondence of tree-level KK relation in nonlinear sigma model.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Scattering Amplitudes, Sigma Models
in
Journal of High Energy Physics
issue
3
publisher
Springer
external identifiers
  • wos:000351751300005
  • scopus:84961288461
ISSN
1126-6708
DOI
10.1007/JHEP03(2015)156
language
English
LU publication?
yes
id
6ba42b69-f9ba-442c-b357-545b6804cde8 (old id 5277882)
date added to LUP
2015-04-24 09:56:10
date last changed
2017-07-23 03:25:53
@article{6ba42b69-f9ba-442c-b357-545b6804cde8,
  abstract     = {In this note, we investigate relations between tree-level off-shell currents in nonlinear sigma model. Under Cayley parametrization, all odd-point currents vanish. We propose and prove a generalized U(1) identity for even-point currents. The off-shell U(1) identity given in [1] is a special case of the generalized identity studied in this note. The on-shell limit of this identity is equivalent with the on-shell KK relation. Thus this relation provides the full off-shell correspondence of tree-level KK relation in nonlinear sigma model.},
  articleno    = {156},
  author       = {Chen, Gang and Du, Yijian and Li, Shuyi and Liu, Hanqing},
  issn         = {1126-6708},
  keyword      = {Scattering Amplitudes,Sigma Models},
  language     = {eng},
  number       = {3},
  publisher    = {Springer},
  series       = {Journal of High Energy Physics},
  title        = {Note on off-shell relations in nonlinear sigma model},
  url          = {http://dx.doi.org/10.1007/JHEP03(2015)156},
  year         = {2015},
}